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AUTO follows the operating system. Working hours drive the green banding on every grid. All four persist on this device only.

Time in Guaratinguetá vs Guangzhou

Guaratinguetá keeps UTC−3 (UTC−3) and Guangzhou keeps CST (UTC+8) today. Guangzhou is 11 hours ahead of Guaratinguetá; the rows below read both clocks live.

The working day, side by side

The working days do not meet. there is no working-hour overlap with Guangzhou — the nearest workable window is 06:00–07:00 your time (17:00 there).

Guaratinguetá and Guangzhou hour by hour, with the working-hour overlap shaded
City00:00 in Guaratinguetá01:00 in Guaratinguetá02:00 in Guaratinguetá03:00 in Guaratinguetá04:00 in Guaratinguetá05:00 in Guaratinguetá06:00 in Guaratinguetá07:00 in Guaratinguetá08:00 in Guaratinguetá09:00 in Guaratinguetá10:00 in Guaratinguetá11:00 in Guaratinguetá12:00 in Guaratinguetá13:00 in Guaratinguetá14:00 in Guaratinguetá15:00 in Guaratinguetá16:00 in Guaratinguetá17:00 in Guaratinguetá18:00 in Guaratinguetá19:00 in Guaratinguetá20:00 in Guaratinguetá21:00 in Guaratinguetá22:00 in Guaratinguetá23:00 in Guaratinguetá
Guaratinguetá——000102030405060708091011121314151617181920212223
Guangzhou——000102030405060708091011121314151617181920212223
  • Working hours
  • Shoulder
  • Night
  • Overlap

Do more with Guaratinguetá and Guangzhou

Open in the PlannerAdd more cities, find a meeting time that works for everyone, then share it as a link.Open in Watch ViewKeep Guaratinguetá, Guangzhou and other cities on screen as live clocks, under an animated sky and sun.

Best hours to call

there is no working-hour overlap with Guangzhou — the nearest workable window is 06:00–07:00 your time (17:00 there).

Where daylight saving pulls them apart

Neither Guaratinguetá nor Guangzhou changes its clocks, so the gap above holds all year.

Also useful

Common questions

How many hours ahead is Guangzhou of Guaratinguetá?

Guangzhou is 11 hours ahead of Guaratinguetá right now. The gap is not fixed: it moves whenever either side changes its clocks.

What is the best time to call between Guaratinguetá and Guangzhou?

There is no hour inside working hours in both cities. 06:00–07:00 your time (17:00 there) is the cheapest compromise, and one side is taking a shoulder hour.

Do Guaratinguetá and Guangzhou change clocks on the same date?

Neither city changes its clocks, so the gap between them never moves.